July 28, 2024

#438: Gravitons' Mysteries & The Sun's Hidden Twin

#438: Gravitons' Mysteries & The Sun's Hidden Twin

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Space Nuts Q&A: Gravitons, Dark Matter Twins, and Time...

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Space Nuts Q&A: Gravitons, Dark Matter Twins, and Time Dilation Mysteries
Join Andrew Dunkley and Professor Fred Watson in this engaging Q&A episode of Space Nuts, where they tackle listener questions about some of the most intriguing concepts in the universe.
Episode Highlights:
- Gravitons and Gravity: Gus from Issaquah, Washington, poses a thought-provoking question about the relationship between energy, mass, and gravity. Fred delves into the hypothetical particles known as gravitons and discusses their potential mass and the implications for our understanding of the universe.
- Dark Matter Twin: Rich from the UK suggests an intriguing idea: could our sun have a dark matter twin? Fred explores the plausibility of this concept and how it relates to the mysterious Planet Nine and the nature of dark matter.
- Time Dilation and the Early Universe: Sean from British Columbia wonders if time dilation could explain the unexpectedly large and well-formed galaxies observed by the James Webb Space Telescope. Fred explains the role of time dilation in cosmology and why it might not be the answer to this particular puzzle.
- Dead Stars: Jane asks how many stars in the observable universe are already dead. Fred discusses the lifespans of various types of stars and the vast number of stars that have already met their end.
- Absolute High Temperature: Anthony from Kilkenny, Ireland, inquires about the concept of an absolute high temperature. Fred clarifies why there isn't an absolute maximum temperature, contrasting it with the well-defined absolute zero.
Don't forget to send us your questions via our website... spacenuts.io
Support Space Nuts and join us on this interstellar journey by visiting our website support page. Your contributions help us continue our mission to explore the wonders of the universe. Clear skies and boundless exploration await on Space Nuts, where we make the cosmos your backyard.
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Hi there, thanks for joining us. This is a Q

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and A edition of Space Nuts. My name is Andrew Dunkley.

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Coming up, we're going to do some homework. Gus sent

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us a question a couple of weeks ago. It was

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so convoluted and complicated he gave up. But we'll really

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bit at that because he's actually come up with something

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very interesting. He might not have realized that we'll also

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be looking for the Sun's dark matter twin. According to Rich,

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other questions involving time dilation and dead stars have been

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sent to us, and a question we've done before we

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will revisit because Fred likes Anthony's accent. That's all coming

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up on this edition Space Nuts fifteen in channel ten

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nine ignition.

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Sequence Space Nuts or three two space notes A and

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I repot it.

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Bill's good here is once again to answer all of

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those questions and more, Professor Fred, what's an astronomer A

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large HIPH Fred.

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Let's start on an optimistic note that maybe we can

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maybe we can answer some of them.

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Yes, at least we have a homework department that can

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we can get We can always go back to them later,

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which which is what we're going to do today. Shall

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we just get stuck straight in.

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I think we ought to.

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Yes, all right, So our first job today is to

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answer some homework from Gus, who's sent in this question

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a few weeks ago.

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Hello, Professor Fred and Andrew.

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This is Gus Ever sent from Disakwa, Washington.

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I sent in a question for you guys previously, and

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you thought I was in we Western Australia. I've been

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thinking about gravity today and it came to my mind

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that if energy and mass are equippedent, then essentially shouldn't

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energy also create graph be at some level. I'm not

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sure if this is a related question or or extension

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or a separate question.

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Though.

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Additionally, if a body of any size is generating or

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it has mass and it is generating a gravitational.

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Field, does not that field itself have energy and mass?

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And would that field not create additional gravity by its

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simple existence? So if that's the case, or even kind

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of the case, my question is where does the energy

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and mass go? If or I have no idea where

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to go?

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Thank you? I love love the show and appreciate being

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able to ask. Thank you. Gus. Yeah, I kind of yeah,

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he ran out of puff, but.

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You know, we've we put this one on the back

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burner because there was a lot going on there, a

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lot of thinking, and Fred's done the homework and you've.

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Come up with an answer.

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In fact, you've suggested before we started that Gus might

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have been onto something.

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Yeah, I think it's doing pretty well with that sort

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of thinking. We did talk I think we covered part

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of this a little while ago. You spoke about if

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you if you've got, you know, a planet, and you

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increase its temperature by two hundred degrees celsius or something

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that actually contributes to its mask because you're putting energy

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in and so it would affect it's gravitational pool. But

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the nub of I think Gus's question comes down to

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the issue of whether the hypothetical particles, which we haven't

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yet detected and there is no theory to support them,

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but they are still doing the rounds. The hypothetical particles

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of gravity, which we call gravitons, I guess analogous to

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the fact that we call particles of light photons, which

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are certainly not hypothetical. We know a lot about them,

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and they certainly exist. They're definitely part of our big

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picture of the subatomic world. But gravitons aren't yet, but

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they are thought to exist. So that because gravity is

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one of the four fundamental forces of nature, all the

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others have particles associated with them, and so we expect

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gravity too as well. And eventually we were probably able

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to prove that gravitons exist and that they know that

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they are real, and that we can see evidence of them.

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So the issue that postulates the boils down to do

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gravitons themselves have mass? And the assumption has always been

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and this is because effectively that's what Einstein's relativity predicts,

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although it doesn't really talk about gravitons.

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But.

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The assumption has always been that gravitons are like photons,

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massless particles. They don't have a rest mass, that's the

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way to put it. So photons we know and don't

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have a rest mass. Gravitons are assumed not to have

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a rest mass either. But there is science that's going on.

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People are researching this and in fact i'm reading an

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article which is easy to find. It's on The Guardian's website.

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It's actually four years old, now four and a half

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years old, but it's about the work of one particular

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physicist who name His name is Claudier Dram, who's at

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Imperial College in London, and she has built a theory

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that postulates that gravitons have mass, and if they do,

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then they've got intriguing consequences and one of them is

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that they would have If they do have mass, then

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it would mean that their influence on very large distances,

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on very large scales is weaker, and that could account

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for the phenomenon that we see of the acceleration of

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the universe, the accelerated expansion of the universe, in other words,

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what we call dark energy. If you have mass, gravitons

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with mass, then that could explain the accelerated expansion of

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the universe. Fantastic thing, you know, that would be that

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would solve so many problems. However, and I'm going to

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quote from the Guardian article here because I love this

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this theory. It is what it says is despite successive efforts,

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previous versions of the theory had the unfortunate feature of

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predicting the instantaneous decay of every particle in the universe.

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So there is there's a drawback to it. And a

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quote from Claudia Iram, very clever people who'd worked on

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this and the arguments were very compelling. People thought it

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would be impossible to make it work. But well, there

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was a paper published back in twenty eleven which had

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a pretty hostile response from the you know, the scientific world.

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In other words, people saying, this is all ridiculous. It

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doesn't work. It means every particle in the universe decays instantaneously.

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So so it's still a work in progress. But the

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reason why it was in the news back in twenty

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twenty is that Claudier Durham was the recipient of a

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one thousand, sorry, one hundred thousand US dollar Blavatnik Award

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for young scientists, and it's one of you know, it's

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an award that is put in a place where people

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think it's going to the research is actually going to

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bear some fruit. She actually won the Adams Prize as well,

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which is Cambridge University very prestigious award. So it's still

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a theory. Massive gravity still a theory, but has attractive features.

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I mean, if you can explain away the accelerated expansion

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of the universe by having massive gravitons, that is brilliant,

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but especially if you can do it without everything else

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in the universe us decaying. So you know, it's interesting.

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And one of the other aspects is that you might

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be able to detect this by fairly subtle ways using

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gravitational wave detectors, and as they become more and more

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excuse me, more and more refined, and I guess the

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gold standard is going to be leaser that. What's it

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called large interferometric space. I can't remember what the A

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stands for, but it's an EASA project to have a

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space based gravitational wave observatory. It's if something like that

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had the sensitivity that we expected to have, then it

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may well be that we can one day say, well,

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gravitons have mass, and that would revolutionize our whole thinking

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about the universe. So Gus, you've done very well there

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in yeah an idea, even though you run out of

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steam as I would have done where where you were

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in the thinking. It's it's got some credibility.

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Laser intoferometer, space antenna.

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That's it. Thank you.

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Your answer to gusa's question is going to ask probably

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result in someone asking another question, which might be, Okay,

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we don't know that gravitons exist, or we just assume

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that we haven't identified them. But could gravitons be dark matter, uh,

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dark energy.

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For that matter.

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Well, well, yeah, that's what we're saying that they're saying

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there's no need for dark energy if you've got massive

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gravitons and they weaken their effect, weakens of the distance,

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So you don't need dark energy because the you know,

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the basically the gravitational pull of everything in the universe

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is weaker than we think it is, and that we

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could explain the accelerated expansion dark matter. Yeah, it's an

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interesting thought, except dark matter. Well, dark matter is something

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that's associated with normal mutter. I think I've got to

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think about that one a bit more. So there's more

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work from you, Andrew.

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Sorry about that. Yeah, okay, thank you, Gus. We finally

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got there. While we're talking about dark matter, here's a

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question from Rich in the UK, Hi both and Hugh

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in the studio. Great show, such a broad spectrum of information.

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You do a great job. Okay.

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My question harks back to a number of different episodes

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we've talked about the theory of our sun may have

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been born of a twin planet nine roaming about somewhere

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in there, and that dark matter is only measurable by

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its gravitational effects. So I put two and two together

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and came up with thirteen point seven. Is there any

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plausibility in the idea that the Sun has a dark

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matter twin somewhere in the vicinity, in the vicinity that

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could be demonstrating the effects we see on our Solar

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system instead of a planet nine rich from the UK,

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or maybe it's a town called Ah.

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I'm not sure. No, it's not like it's yes, so

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interesting idea. I mean, we've got no evidence of dark

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matter entities. Yes, stars for a star, planets for a second.

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And in fact, it was experiments done in the nineteen nineties,

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some of which were done here in Australia that ruled

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out the possibility of there being lots of dark matter objects,

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which we call black holes. Basically, it ruled out, you know,

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the dark matter was dense stars in other words, what

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were called black dwarf or rogue planets or black holes

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that we hadn't detected because they would have a signature

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on the stars beyond them, they'd have a gravitational lensing signature.

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And I think that will be the same if you

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had a dark matter planet, it would have a gravitational

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lensing signature, and nothing's been observed so far. It's true

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though that some people have suggested that perhaps Planet nine

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isn't a planet, perhaps it is a black hole, some

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tiny mass black hole something you know, Mutch, more than

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a star, which would suggest that it was a primordial

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black hole, one that was created in the Big Bang,

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not by the collapse of the star. So yeah, these

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are ideas I think that are floating through the astronomical

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community as well, So you're not thinking that far out

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of the box, except a dark matter planet is something

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that I don't think mainstream astronomy things could exist, so

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that might not be the exact answer.

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Yes, very good, Thank you, Rich. This is Space Nuts

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Andrew Dunkley here with Professor Fred Let's take a little

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break from the show to tell you about our sponsor

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It's a very nasty case, but this is what happens.

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Up yourself, but as fast as you do it, some

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so that's in cogniti dot com slash space nuts and

267
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the coupon code space nuts. Now back to the show. Okay,

268
00:18:03.319 --> 00:18:09.720
we take yourself space nuts. Our next question comes from Sean.

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There seems to be controversy surrounding the James Webspace telescopes

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pictures of galaxies in the early universe, and how many

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of them seem to be too big and well formed

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when they're only half a billion or less years old.

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00:18:24.359 --> 00:18:27.720
I was pondering this question over coffee this morning people

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tend to do that, and was wondering if time dilation

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might have anything to do with this. It seems to

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me that if the early universe was expanding at anywhere

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00:18:37.680 --> 00:18:41.079
near light speed from our point of observation thirteen point

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00:18:41.119 --> 00:18:44.039
eight billion years in the future, things wouldn't be what

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00:18:44.119 --> 00:18:44.680
they seem.

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You guys are the best. I hope this question can

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provide a few moments.

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Of filler for your awesome podcast. Sean from British Columbia.

283
00:18:54.240 --> 00:18:59.240
Sure you you you underestimate yourself as far more than filler.

284
00:18:59.359 --> 00:19:05.640
This is interesting stuff, this questions of fillers. Yeah so yeah,

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00:19:05.799 --> 00:19:11.000
I mean time dilation is an interesting aspect of our

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00:19:11.359 --> 00:19:14.960
view of cosmology. I don't think it solves the problem

287
00:19:15.119 --> 00:19:21.640
in this case, but partly because what you're talking about, Sean,

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00:19:21.720 --> 00:19:27.000
here is relativistic time dilation from special relativity. You're talking

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about it from the point of view of things moving

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00:19:29.400 --> 00:19:33.759
at near relativistic speeds, in other words, near the speed

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of light. And yes, you're right that the early universe expanded,

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probably faster than the speed of light, but only for

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00:19:45.519 --> 00:19:48.880
about tenth of minus thirty three of a second. So

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this was way way before the origin of galaxies, way

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00:19:52.799 --> 00:19:56.240
way before the origin of well matter actually, because it

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was just pure energy at that stage, and since then

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the exper has been much more sedate. So the speeds

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00:20:03.839 --> 00:20:09.000
involved are not such as to I hope I'm saying

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00:20:09.039 --> 00:20:14.680
the right thing here to be relativistically significant. In other words,

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they wouldn't cause time dilation of the kind that you're

301
00:20:19.400 --> 00:20:23.279
thinking of. In other words, the idea that we're seeing

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00:20:23.799 --> 00:20:30.440
we're looking back our look back time is illusory. That's

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00:20:30.640 --> 00:20:32.960
the point that I think you're making that we think

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we're looking back in time to a time, you know,

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00:20:36.880 --> 00:20:39.519
when the universe was only half a billion years old,

306
00:20:40.119 --> 00:20:43.119
but we're not. We're actually that's an illusion. We're looking

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00:20:43.160 --> 00:20:46.440
back to a time later than that, and I don't

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00:20:46.480 --> 00:20:50.279
think it works in that situation. It's a nice thought.

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00:20:50.359 --> 00:20:52.720
Time dilation is always good to think about because it's

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00:20:52.759 --> 00:20:56.680
such a boogie phenomenon, but I don't think it works

311
00:20:56.720 --> 00:20:59.799
in this case, so far more than a filler shown.

312
00:21:00.000 --> 00:21:01.440
Great question, Thank you very much.

313
00:21:02.039 --> 00:21:06.039
Indeed, thanks Sean. And a question from Jane. How many

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00:21:06.119 --> 00:21:10.160
stars in the humanly observable universe are already dead?

315
00:21:13.480 --> 00:21:18.400
Yes, well that the slow I can't give an answer

316
00:21:18.400 --> 00:21:21.400
to this, but I can laffle on about it. Sorry,

317
00:21:21.599 --> 00:21:28.519
the rapid the brief lifetimes of very massive stars, they

318
00:21:28.559 --> 00:21:33.680
are only ten million years or less. For you know,

319
00:21:33.720 --> 00:21:38.400
a very massive star such as we think were created

320
00:21:38.440 --> 00:21:43.559
in the early universe. These are you know, lift fast,

321
00:21:43.559 --> 00:21:49.119
die young stars. They're what makes the spiral arms of

322
00:21:49.160 --> 00:21:51.920
galaxies look blue. These are young stars, massive stars that

323
00:21:51.920 --> 00:21:54.880
aren't going to last very long. They'll detonate with a

324
00:21:54.920 --> 00:21:58.759
super and ova, possibly forming a black hole very quickly.

325
00:21:59.000 --> 00:22:03.400
So there's lots of these stars that are already dead

326
00:22:03.480 --> 00:22:10.640
because they're now something else. The most numerous stars are

327
00:22:10.640 --> 00:22:13.160
in the vicinity of the Sun in our own galaxy

328
00:22:13.640 --> 00:22:17.680
are red dwarf stars, and they're very old, and they'll

329
00:22:17.799 --> 00:22:21.400
go on being very old because they they're the opposite

330
00:22:21.440 --> 00:22:26.079
of these you know, live fast, die young, right, super

331
00:22:26.079 --> 00:22:31.519
massive stars. They're low mass, they churn through their hydrogen

332
00:22:32.279 --> 00:22:37.079
fuel very slowly and last for billions of years, outlasting

333
00:22:37.119 --> 00:22:38.960
the son. The Sun's got a lifetime of about ten

334
00:22:39.000 --> 00:22:42.799
billion years. These red dwarfs have going much longer than that.

335
00:22:43.279 --> 00:22:45.519
So there's a lot of the stars that aren't dead yet.

336
00:22:47.000 --> 00:22:49.400
But at the same time, there are a lot of

337
00:22:49.440 --> 00:22:53.400
stars that are that they're dead too. So, Jane, I

338
00:22:53.440 --> 00:22:57.720
can't give you an answer to that question directly, but

339
00:22:58.000 --> 00:23:00.839
to say that, yes, there is a popular of objects

340
00:23:00.839 --> 00:23:04.440
in the universe that are no longer visible because they've

341
00:23:04.440 --> 00:23:07.640
turned into something else, either a black hole or a

342
00:23:07.640 --> 00:23:11.079
white dwarf, as a sun like star would turn into.

343
00:23:13.279 --> 00:23:16.640
It's one that I'll think about again a bit more.

344
00:23:16.640 --> 00:23:18.799
I'm not going to call it homework because I might forget,

345
00:23:18.880 --> 00:23:20.759
but I'll think about that a bit more and see

346
00:23:20.799 --> 00:23:22.799
if we can come up with a number. How many

347
00:23:22.839 --> 00:23:27.079
stars in the humanly observable universe are already dead? Have

348
00:23:27.160 --> 00:23:30.119
to be in the billions? Well they well, oh yeah,

349
00:23:30.160 --> 00:23:33.920
absolutely so. How many stars are there in the universe?

350
00:23:33.920 --> 00:23:38.480
About ten to twenty three, because there's something like ten

351
00:23:38.599 --> 00:23:45.279
to the eleven stars in a galaxy, and there's about

352
00:23:45.319 --> 00:23:47.920
ten to the twelve galaxies in the universe, So that

353
00:23:48.039 --> 00:23:53.400
makes ten to the twenty three stars. And there stars

354
00:23:53.559 --> 00:23:57.359
like those in our own galaxy, but that doesn't count

355
00:23:57.400 --> 00:23:59.920
for the ones that might have already popped off a superner,

356
00:24:00.880 --> 00:24:04.119
so it would be it would be billions. It might

357
00:24:04.240 --> 00:24:08.839
actually be more than billions. It's a lot. A lot

358
00:24:08.960 --> 00:24:13.720
is a technical answer. Is a lot a lot. Thank you, Jane.

359
00:24:13.720 --> 00:24:15.440
Lovely to hear from you, and nice to get a

360
00:24:15.839 --> 00:24:19.759
question from our female audience sector.

361
00:24:21.039 --> 00:24:24.000
That's very official. It's the only way I say it

362
00:24:24.039 --> 00:24:26.920
these days. Andrew, Yeah, try to be careful.

363
00:24:29.039 --> 00:24:32.279
Finally, we're going to revisit a question we've had before.

364
00:24:32.640 --> 00:24:35.519
This is from Anthony and the reason we're doing it again.

365
00:24:35.839 --> 00:24:39.480
Fred likes Anthony's accent. I'm not kidding, that's the truth.

366
00:24:41.240 --> 00:24:45.440
Hi, guys, Anthony here from Kenny in Irelands. I've been

367
00:24:45.640 --> 00:24:49.920
looking at absolute zero being minus two hundred and seventy

368
00:24:50.160 --> 00:24:53.480
degrees census and if it's an absolute zero, surely there

369
00:24:53.519 --> 00:24:55.839
must be an absolute high temperature.

370
00:24:56.640 --> 00:25:00.200
Could you tell me what that is? Thank you be

371
00:25:00.240 --> 00:25:04.000
sure to sure. I've just realized what a great what

372
00:25:04.039 --> 00:25:05.359
a great accent, isn't it lovely?

373
00:25:05.519 --> 00:25:05.759
Yeah?

374
00:25:06.359 --> 00:25:12.720
So sorry, Anthony, Anthony going back to Sean because that's

375
00:25:12.759 --> 00:25:17.680
a very Irish name. Anthony's from kirl Kenny. Here's a

376
00:25:17.720 --> 00:25:22.680
weird thing, Andrew, A little weird coincidence. The friend of

377
00:25:22.720 --> 00:25:25.839
mine that I mentioned who was reading reading Dune back

378
00:25:25.880 --> 00:25:33.720
in nineteen sixty seven, Yep, his name is David Kilkenny. Yeah,

379
00:25:33.759 --> 00:25:37.839
there you go. I think, look there just just a

380
00:25:37.880 --> 00:25:42.440
little strange coincidence. Dave doesn't I'm sure Dave doesn't listen

381
00:25:42.440 --> 00:25:44.680
to the space nuts. But if you do, Dave, how

382
00:25:44.720 --> 00:25:47.720
are you doing time? You wrote to me again. He

383
00:25:47.799 --> 00:25:51.000
lives in Captown in South Africa. When I came to

384
00:25:51.039 --> 00:25:54.119
Australia to make my career back in the day he

385
00:25:54.160 --> 00:25:56.000
went to South Africa to make his career.

386
00:25:56.759 --> 00:26:00.079
He's another coincidence, right, yeah, quite a shocking one. I

387
00:26:00.119 --> 00:26:02.160
don't know if you've heard of the cartoon series called

388
00:26:02.200 --> 00:26:05.960
South Park. Yes, in every episode they kill Kenny.

389
00:26:07.079 --> 00:26:13.640
Oh there you go. There. You don't know where this

390
00:26:13.759 --> 00:26:14.359
is going to go to.

391
00:26:14.519 --> 00:26:18.880
But let's go to the question what's the absolute maximum?

392
00:26:18.920 --> 00:26:22.279
Now we did have this before, and we did answer it.

393
00:26:22.319 --> 00:26:25.880
Not if I recall correctly, the answer is there isn't one.

394
00:26:26.279 --> 00:26:29.799
Is that what happens? It is? That's correct. So absolute

395
00:26:29.880 --> 00:26:34.400
zero's defined. So temperature is the effect of particles moving

396
00:26:36.279 --> 00:26:37.960
in a solid. They just vibrate.

397
00:26:38.160 --> 00:26:42.319
So you know the fact that my desk is getting

398
00:26:42.359 --> 00:26:44.480
a bit warm because the heat is pointing at It

399
00:26:44.480 --> 00:26:48.440
means that the atoms in the desk top are vibrating

400
00:26:49.599 --> 00:26:52.559
in a In a liquid day, they swirl around in

401
00:26:52.640 --> 00:26:54.640
a gas, they zoom about all over the place.

402
00:26:54.680 --> 00:26:59.119
The temperature is related to motion, and the absolute zero

403
00:26:59.359 --> 00:27:03.200
is defined basically as the temperature at which all motion stops.

404
00:27:03.880 --> 00:27:06.880
So there isn't an absolute maximum because things can move

405
00:27:06.920 --> 00:27:09.839
as fast as you want them to, especially in the

406
00:27:09.920 --> 00:27:15.359
rarefied gas between the stars and planets. But absolute zero

407
00:27:15.440 --> 00:27:18.799
is well defined. It's the temperature which atomic motion stops.

408
00:27:18.839 --> 00:27:22.799
And as Anthony said, minus two hundred, two hundred and

409
00:27:22.799 --> 00:27:27.079
seventy three degrees minus two hundred and seventy three degrees celsius.

410
00:27:28.440 --> 00:27:32.920
That's cool. It's been like that here lately though. Yeah,

411
00:27:33.000 --> 00:27:33.960
all motions stopped.

412
00:27:34.000 --> 00:27:36.519
In my case, all motion stopped. That's run it well,

413
00:27:38.200 --> 00:27:40.599
especially on the golf course. Gosh, it's been a bitterly

414
00:27:40.680 --> 00:27:44.039
cold out there. We must be idiots, and most golfers

415
00:27:44.039 --> 00:27:48.640
are golfers and fishermen. Yeah, go out and all sorts

416
00:27:48.640 --> 00:27:53.240
of weather, so there is no absolute maximum antony is

417
00:27:53.279 --> 00:27:55.599
what we took a long time to say.

418
00:27:55.640 --> 00:27:59.319
But thanks for the question and love the accent. That's

419
00:27:59.400 --> 00:28:01.559
just about it, and forget. If you've got questions for us,

420
00:28:01.599 --> 00:28:03.599
you can send them through for our Q and A

421
00:28:03.680 --> 00:28:07.359
episodes via our website, space nuts podcast dot com or

422
00:28:07.400 --> 00:28:09.640
space nuts dot io. If you click on the little

423
00:28:09.640 --> 00:28:12.759
AMA button up the top, it'll give you at an

424
00:28:12.759 --> 00:28:15.119
interface to send us text questions or you can send

425
00:28:15.160 --> 00:28:17.759
an audio question. But on the right hand side of

426
00:28:17.799 --> 00:28:21.559
the homepage send us your questions. Press that and you

427
00:28:21.599 --> 00:28:23.440
can send us an audio question. Don't forget to tell

428
00:28:23.480 --> 00:28:26.319
us who you are and where you're from. Fred, thank

429
00:28:26.359 --> 00:28:26.920
you so much.

430
00:28:26.960 --> 00:28:30.440
It's been a great pleasure as always, good to chat Andrew.

431
00:28:31.759 --> 00:28:34.079
But I still wander how we got away with it

432
00:28:34.119 --> 00:28:34.880
to be eldest, but.

433
00:28:36.440 --> 00:28:39.480
Well we'll keep trying to get away with it, see

434
00:28:39.519 --> 00:28:40.039
what happens.

435
00:28:40.720 --> 00:28:44.000
Thanks Red soon, cheers, bye bye.

436
00:28:44.039 --> 00:28:46.880
Fred Watson, astronomer at large, part of the team here

437
00:28:46.920 --> 00:28:48.960
at Space Nuts. And thanks to Hu in the studio

438
00:28:49.799 --> 00:28:52.240
who turned up for two episodes this week, which is

439
00:28:52.240 --> 00:28:53.720
good because we had two episodes.

440
00:28:54.119 --> 00:28:56.359
And from me Andrew Dunkley, thanks for your company.

441
00:28:56.400 --> 00:28:58.279
As always, we'll see you on the next episode of

442
00:28:58.319 --> 00:28:58.960
Space Nuts.

443
00:28:59.000 --> 00:28:59.839
Bye bye.

444
00:29:00.759 --> 00:29:04.000
You'll be listening to the Space Nuts podcast.

445
00:29:05.079 --> 00:29:11.079
Available at Apple Podcasts, Spotify, iHeartRadio, or your favorite podcast player.

446
00:29:11.279 --> 00:29:14.599
You can also stream on demand at bites dot com.

447
00:29:14.599 --> 00:29:23.839
This has been another quality podcast production from nights dot Com.
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